Horseshoe-calk.



N0. 660,265. Patented '06:; 23, 1900..

J'. THANEY. HORSESHOE CALK.

(App! cat filed I! y 16 1900) (No Model.)

UNITED STATES 1 PATENT OFFICE.

JOHN THANEY, OF MILWAUKEE, VVISGONSIN.

HORSESHOE-CALK.

SPECIFICATION forming part of Letters Patent No. 660,265, dated October 23, 1900.

' Application filed May 1e,1900.

T0 at whomit may concern: I

Be it known that I, JOHN THANEY, of Mil-j wau kee, in the county of Milwaukee and State of Wisconsin, have invented a new and useful Improvementin Horseshoe-Oalks,of which the following is a description, reference being; had to the accompanying drawings, which are I a part of this specification.

My invention has relation to improvements: in horseshoe-calks of that class wherein the calk is detachably secured to the shoe.

The primary object of my invention is to provide a device of the above character which shall involve the maximum degree of simplicity and inexpensiveness and yetat the same time provide a construction which is not only readily applied to the shoe and firmly held in place thereto when so applied, but is readily removable from the shoe whenever it becomes so worn that its usefulness is impaired and it is desired for that reason to substitute an- -yond the surface ofthe calk.

In the application of my invention any deother calk therefor.

With the above primary objectin View the invention consists of the devices and parts or their equivalents, as hereinafterset forth.

In the accompanying drawings, Figure 1 is an under view of a fragment of a horseshoe,

showing-my invention applied thereto. Fig. 2 is an edge view of Fig. 1, the main parts being seen in section. Fig. 3 is a view of a fragment of a horseshoe, parts broken away, showing the calk detached therefrom, the wedge-key being shown as partially in place in the recess of the calk. Fig. 4is a top view. of the calk with the key in place therein. Fig. 5 is an elevation of the-calk. Fig. 6 is a view at right angles to Fig. 5, the key being in place in the calk; and'Fig. 7 is a sectional view of a modification.

Referring to the drawings, the numeral 7 indicates a fragment of ahorseshoe provided with an opening 8.

The calk is indicated by the numeral 9, and at an approximately-central point it is provided with an external annular shoulder 10. From the shoulder 10 downwardly the calk is of conical form, as clearly shown, and from the shoulder upwardly said calk is of cylindrical form in order to conform to and fit the opening in the horseshoe. This portion of thecalk above the annular shoulder in order Serial No. 16,940. (No model.)

. to provide for a better wedging effect against the sides of the opening in'the horseshoe is bifurcated or slitted, as indicated by the numeral 11, the said bifurcation or slit extending from the upper end downwardly for adesired distance. Extending longitudinally of one side of the calk is awedge-shaped recess or keyway 12, the bottom of said recess being on a gradual inward taper from the lower end thereof'upwardly and the sides of said recess being tapered outwardly and upwardly.

The wed ge-key is indicated by the numeral 13, and the inner edge of this key is on a gradually-increasing taper upwardly to register with the tapered bottom of the recess or keyway, while the sides of said key are also tapered outwardly and upwardly to register with the tapered sides of said recess. Atits lowerend the key is provided with an outwardly-projecting lug or shoulder 14, which extends outwardly for a desired distance besired number of these devices may be ar- I ranged at different points on the horseshoe,

preferably at the heel and toe thereof. In adjusting one of the improved devices to the shoe the key is first inserted in the recess or keyway of the calk to about the extent shown in Fig. 3. The said key is then passed'up into the opening 8 of the shoe to the extent permitted by the shoulder 14 of said key, and the calk is then driven into the hole 8 to the extent permitted by the shoulder 10, the parts then assuming the position shown in Fig. 2. When the parts are thus in place, it will be seen that the beveled inner edge of the key acting against the beveled bottom of the recess or keyway will firmly wedge the calk at diametrically opposite points against the sides of the opening of the shoe, and by reason of the provision of the tapered sides of the key and the registering tapered sides of the recess or keyway the cut or bifurcation 11 is separated, and hence thecalk is also forced firmly against the other opposite sides of the hole 8. The registering tapering surfaces of the key and keyway also act to -firmly hold the key in engagement with said keyway.

In order to remove the calk, all that is necessary to be done is to knock off the shoulder 14 of the key by means of a chisel or other suit-able tool and then drive the key upwardly through the openings of the shoe. After the key is fully removed it is obvious that the calk may be readily withdrawn from the opening of the shoe.

While I preferably bifurcate or cut the upper end of the calk, as indicated by the numeral 11, yet I wish it to be understood that this feature may be omitted, if desired, inasmuch as Without this bifurcation or cut a wedging of the calk against two diametrically opposite sides of the opening will be secured. I prefer, however, to employ the bifurcation or cut, inasmuch as better results are thereby obtained owing to the fact that the wedging is thereby considerably increased. Again, the taper in the bottom of the recess and the taper of the inner side of the key may be omitted and only the tapering sides of the recess and the key provided in conjunction with the bifurcated or slitted upper end of the calk and successful results obtained without departing from the spirit and scope of my invention.

In Fig. 7 of the drawings I show a slightlymodified form of construct-ion wherein the side recess 12' communicates with a circular branch recess 15, said branch recess inclining inwardly and upwardly and being of conical form, the taper gradually increasing upwardly. The Wedge key (indicated by the numeral 13') in this form of construction is' of conical form, the taper gradually increasing toward the upper end thereof. This key fits in the recess 15, and by reason of the incline of said recess the key is necessarily thrown at an incline. This key is also provided with the shoulder 14. It will be obvious that by reason of the incline of the recess 15 and of the conical form of said recess and of the key the same wedging effects are obtained as in the other form of construction.

What I claim as my invention is l. A horseshoe-calk having a recess or keyway extending longitudinally of the side thereof, the bottom or inner edge of said recess being tapered inwardly and upwardly.

2. A horseshoe-calk having a recess or keyway extending longitudinally of the side thereof, the bottom or inner edge of said recess being tapered inwardly and upwardly,

and the upper portion of said calk being bi furcated or slitted.

3. The combination with a calk having a recess or keyway extending longitudinally of the side thereof, the bottom of said recess being tapered inwardly and upwardly, of a key. adapted to fit said recess, and having its inner edge tapered or beveled to register with the tapered bottom of the recess.

4. The combination with a calk having a recess or keyway extending longitudinally of the side thereof, the sides of said recess being tapered outwardly and upwardly, and said calk being bifurcated or slitted from its upper end downwardly for a desired distance, of a key having its side edges tapered or beveled to register with the tapered sides of the recess.

5. The combination,with a calk having a recess or keyway extending longitudinally of the side thereof, the bottom of said recess be ing tapered inwardly and upwardly, and the sides of said recess being tapered outwardly and upwardly, and said calk being bifurcated or slitted from its upper end downwardly for a desired distance, of a key having its inner edge tapered or beveled to register with the tapered bottom of the recess, and its side edges also tapered or beveled to register with the tapered sides of the recess.

6. The combination with a calk having a recess or keyway extending longitudinally of the side thereof, the bottom or inner edge of said recess being tapered inwardly and upwardly, of a key adapted to lit the recess, said key having its inner edge tapered to register with the tapered inner side or bottom of the recess, and said key also provided with a pro j ecting lug or shoulder.

7. The combination with a calk havinga recess extending longitudinally of the side thereof, the inner portion of said recess being conical and inclining inwardlyand upwardly, the taper of the cone gradually increasing upwardly, of a conical pin fitting the inclined inner portion of the recess.

In testimony whereof I affix my signature in presence of two witnesses.

.IOl-IN THANEY.

Witnesses:

A. L. MoRsELL, ANNA V. FAUST. 

